CN108511937A - A kind of plate is to plate RF coaxial connector jack - Google Patents

Abstract

The present invention relates to a kind of plates to plate RF coaxial connector jack, it includes housing, is fixed in the housing insulator and it is arranged in the housing and through the contact pin of the insulator, the outer casing inner wall, which sets gradually to be formed with, is oriented to the conical surface, limited step portion and clamping groove；The punching press shell include be set in the housing and one end resist the shell in the limited step portion, be set on the shell and with the matched multiple clamping protrusions of the clamping groove, the multiple limiting grooves being set on the shell and be formed in the housing other end and extend to multiple pins outside the housing；The insulator further include be opened in the insulator peripheral surface and with the matched multiple positioning grooves of the limiting groove.Ensure them to realize being fixedly connected between insulator and housing and not will produce axial movement.

Description

A board-to-board radio frequency coaxial connector socket

technical field

The invention relates to a socket, in particular to a board-to-board radio frequency coaxial connector socket.

Background technique

The current board-to-board RF coaxial connectors are usually single-product single-channel mode, that is, each connector product is installed independently, and each product transmits only one signal, which can ensure the high-tolerance board-to-board use environment of a single product . As shown in Figure 1, the board-to-board RF coaxial connector includes a socket assembly 10' and a plug assembly 20', and the socket assembly 10' includes a socket housing 101', a first insulator 102' installed in the socket housing 101' and The pin 103' is set in the socket shell 101' and penetrates the first insulator 102'. The plug assembly 20' includes an outer conductor 201', a second insulator 202' installed in the outer conductor 201', and a second insulator 202' opened in the second insulator 202'. Jack 203' at the center. The socket assembly 10' of such structure has problems such as connection and guidance, axial fixation and bending strength when mating with the socket.

Contents of the invention

The object of the present invention is to provide a board-to-board radio frequency coaxial connector socket in order to overcome the deficiencies of the prior art.

In order to achieve the above purpose, the technical solution adopted by the present invention is: a board-to-board radio frequency coaxial connector socket, which includes a jacket, an insulator fixed in the jacket, and an insulator arranged in the jacket and penetrating the insulator. Pin, the insulator includes an insulating body and a socket opened on the insulating body for installing the pin, the insulator is fixed in the outer casing through a stamped shell sleeved on its outer periphery; the outer casing The inner wall is sequentially formed with a guide tapered surface, a limiting step and a locking groove; the stamped shell includes a housing arranged in the outer casing and one end abuts against the limiting step, and is arranged on the housing and A plurality of locking protrusions matched with the locking groove, a plurality of limiting grooves provided on the housing, and a plurality of guides formed on the other end of the outer casing and extending outside the outer casing feet; the insulator also includes a plurality of positioning grooves opened on the outer peripheral surface of the insulator and matched with the limiting grooves.

Preferably, the insulator further includes a plurality of position-limiting protrusions arranged on the outer peripheral surface of the insulator and in contact with the inner wall of the housing, the locking protrusions and the position-limiting protrusions are located at the positioning positions respectively. groove or both sides of the limiting groove.

Further, the insertion pin includes a needle body, a first limiting protrusion ring disposed on the peripheral surface of the needle body, and a second limiting protrusion ring disposed on the peripheral surface of the needle body, and the first limiting protrusion The distance between the ring and the second limiting protruding ring is equal to the thickness of the insulating body.

Further, the number of the locking protrusions and the limiting grooves are the same, and they correspond to each other and are arranged adjacent to each other.

Optimally, each of the pins extends toward the direction where the axis of the housing is located.

Further, an extending groove is opened on the outer surface of each pin.

Optimally, the extension direction of each pin is perpendicular to the direction where the axis of the housing is located.

Further, the guide tapered surface is formed by sequentially connecting multiple tapered surfaces and at least one cylindrical surface.

Due to the application of the above technical solutions, the present invention has the following advantages compared with the prior art: the board-to-board radio frequency coaxial connector socket of the present invention cooperates with the insulator of a specific structure and the stamped shell, thereby realizing the connection between the insulator and the outer shell The fixed connection ensures that they will not produce axial movement; and the stamped shell of this structure is formed by stamping copper plates, which overcomes the high cost problem that the existing sockets are usually processed by turning and milling, and is conducive to improving production efficiency and reducing production Processing costs.

Description of drawings

FIG. 1 is a schematic structural diagram of an existing conventional board-to-board RF coaxial connector;

Fig. 2 is a schematic structural diagram of a board-to-board radio frequency coaxial connector socket in Embodiment 1;

Fig. 3 is the exploded view of the board-to-board radio frequency coaxial connector socket in embodiment 1;

Fig. 4 is the board-to-board radio frequency coaxial connector adopting the board-to-board radio frequency coaxial connector socket in embodiment 1;

FIG. 5 is a schematic structural diagram of a board-to-board radio frequency coaxial connector socket in Embodiment 2;

FIG. 6 is a schematic structural diagram of a board-to-board radio frequency coaxial connector socket in Embodiment 3;

FIG. 7 is a schematic structural diagram of a board-to-board radio frequency coaxial connector socket in Embodiment 4. FIG.

Detailed ways

The preferred embodiment of the present invention will be described in detail below in conjunction with accompanying drawing:

Example 1

The board-to-board RF coaxial connector socket 1 shown in FIGS. 2 to 3 mainly includes a jacket 11 , a stamped shell 12 , an insulator 13 , pins 14 and the like.

Wherein, the inner wall of the outer casing 11 is formed with a guiding tapered surface 113, a limiting step portion 111 and a snap-in groove 112 in sequence, the guiding tapered surface 113 is located at the end of the inner wall of the outer casing 11, and the limiting stepped portion 111 is usually located in the middle of the inner wall of the outer casing 11 , the locking groove 112 can be arranged in a ring shape or at multiple intervals according to needs (that is, whether the socket needs to move in a circumferential direction); The insulator 13 is fixed in the casing 11 , and includes an insulating body 131 and an insertion hole 130 opened on the insulating body 131 (usually at the center of the insulating body 131 ). The pins 14 are disposed in the casing 11 and pass through the insulator 13 , and the aforementioned sockets 130 are used to install the pins 14 so that the pins 14 are inserted into the sockets 130 . The stamping shell 12 includes a casing 121 which is arranged in the outer casing 11 and has one end against the limit step 111 (the end of the stamping shell 121 against the limit step 111 is closed, that is, this end of the stamping shell 121 faces Inner contraction, so that when the plug is inserted, the stamped shell 12 can buckle the elastic part of the plug to form an electrical contact), a plurality of snap-in protrusions 122 arranged on the housing 121 and matched with the snap-in groove 112, set A plurality of limiting grooves 125 on the housing 121 (the plurality of limiting grooves 125 extend inward to form corresponding protrusions in the housing 121 ) and the other end of the casing 11 and extend to the outside of the casing 11 A plurality of pins 123 ; and the insulator 13 further includes a plurality of positioning grooves 132 provided on the outer peripheral surface of the insulator 13 and matched with the limiting grooves 125 . Can realize the fixed connection between overcoat 11, stamping shell 12 and insulator 13 by the cooperation of each projection and groove like this, promptly insulator 13 can be fixed in the overcoat 11 by being sleeved on its periphery (insulator 13 peripheral surface) ) is achieved by a stamped housing 12.

In this embodiment, the insulator 13 further includes a plurality of position-limiting protrusions 133 arranged on the outer peripheral surface of the insulator 13 and in contact with the inner wall of the housing 121 , and the locking protrusions 122 and the position-limiting protrusions 133 are located in the positioning grooves 132 respectively. Or both sides of the limiting groove 125 (at this time, the positioning groove 132 and the limiting groove 125 are matched), so as to avoid shaking between the insulator 13 and the stamped shell 12 and affect the reliability of the socket. The insertion pin 14 includes a needle body 141, a first limiting protruding ring 142 arranged on the peripheral surface of the needle body 141 and a second limiting protruding ring 143 arranged on the peripheral surface of the needle body 141, the first limiting protruding ring 142 and the second The distance between the limiting protruding rings 143 is equal to the thickness of the insulating body 131 to ensure the reliability and stability of the connection between the pin 14 and the insulating body 13 . The locking protrusions 122 and the limiting grooves 125 have the same number, and they are arranged adjacent to each other in one-to-one correspondence, so that it can be completed by one stamping, which is beneficial to simplify the operation steps and reduce the cost.

In this embodiment, the extension direction of each pin 123 is parallel to the direction where the axis line of the housing 121 is located, that is, each pin 123 extends toward the direction where the axis line of the housing 121 is located; The diameter of the circle surrounded by the ends of the pins 123 is greater than the diameter of the housing 121, so the end of each pin 123 forms a bend at the junction with the housing 121; The outer surface of the pin 123 is provided with an extension groove 124 that can extend to the bending portion, which can play a role in strengthening the bending resistance of the pin 123 . And the guide cone 113 is formed by connecting successively two cones and a cylinder, and the cylinder is connected between the two cones (the minimum diameter of the cone on the outside is equal to the diameter of the cylinder, and also equal to the cone on the inside. surface diameter).

The socket 1 and the plug 2 of this embodiment can be assembled to form a board-to-board RF coaxial connector (as shown in Figure 4); the specific structure of the plug 2 is as follows: the plug 2 includes an outer conductor, The second insulator and the socket set in the outer conductor and through the second insulator (also make the socket installed on the second insulator), the end of the outer surface of the outer conductor (the end that is plugged with the socket 1) is provided with a protrusion part, the sleeve is matched with the pin 14. The third insulator is installed in the outer conductor, which includes a hollow tube body installed in the outer conductor, a limiting protrusion formed on the inner surface of the hollow tube and matched with the pin, and extending from the inner surface of the limiting protrusion to the center. The inclined surface of the outer end surface of the empty pipe; when the socket 1 and the plug 2 are in the plugged state, the end surface of the socket is in contact with the limit protrusion. The end of the socket (the end that is plugged with the socket 1) has an extension wall that surrounds the socket, and the free end of the extension wall extends obliquely toward the axis of the socket, so that the free end of the extension wall The diameter is smaller than the diameter of the other end (when the socket 1 and the plug 2 are in the plugged state, the plane where the contact point between the pin 14 and the socket is defined is the first plane, and the plane where the contact point between the protrusion and the inner wall of the outer casing 11 is located If the inside is the second plane, then the first plane and the second plane overlap (at this time, the protrusion needs to have a larger size), that is, the intersection point of the axis line of the pin 14 and the axis line of the sleeve is in the aforementioned plane , this is because when the socket 1 and the plug 2 are mated and there is an angular deviation, the contact point between the outer conductor and the jacket 11 and the contact point between the sleeve and the pin 14 deflect at the same circle center, which will not cause radial prying The third insulator also includes a clamping protrusion arranged on the outer surface of the hollow tube and clamped at the end of the inner surface of the outer conductor, so that the third insulator can be firmly installed in the outer conductor. The inner surface of the extension sleeve wall The arc-shaped protrusion is formed so that the contact point between the arc-shaped protrusion and the pin 14 is the aforementioned contact point between the pin 14 and the socket).

Example 2

The structure of the board-to-board RF coaxial connector socket 1' as shown in Fig. 5 is basically the same as that in Embodiment 1, except that the structure of the punched shell 12' is different. The stamping shell 12' also includes a housing 121' disposed inside the outer casing 11' and one end abuts against the limiting step, and a plurality of engaging protrusions 122' disposed on the housing 121' and matched with the engaging grooves , a plurality of limiting grooves 125' provided on the housing 121' (the plurality of limiting grooves 125' extend inward to form corresponding protrusions in the housing 121'), and are formed on the other end of the casing and extend to a plurality of pins 123' outside the housing. However, in this embodiment, the extending direction of each pin 123' is perpendicular to the axis of the casing 121', so that the pins 123' become SMT surface mount pins.

Example 3

The structure of the board-to-board RF coaxial connector socket 1'' as shown in Figure 6 is basically the same as that in Embodiment 1, except that the structure of the jacket 11'' is different. The inner wall of the jacket 11'' is also sequentially formed with a guiding tapered surface 113'', a limiting step 111'' and a locking groove 112''. The connection groove 112'' can be arranged in a ring shape or in multiple intervals according to requirements (that is, whether the socket needs to move in the circumferential direction). However, in this embodiment, the guiding tapered surface 113'' is only a single-sided structure with an enlarged guiding range, and at this time, the locking connection between the stamping shell and the plug becomes a sliding contact connection.

Example 4

The structure of the board-to-board radio frequency coaxial connector socket 1''' shown in Figure 7 is basically the same as that in Embodiment 1, except that the structure of the jacket 11''' and the punched shell 12''' are different. The stamping shell 12''' also includes a shell 121''' that is set in the outer shell 11''' and one end is against the limit step, and is set on the shell 121''' and fits into the locking groove. A plurality of locking protrusions 122''', a plurality of limiting grooves 125''' provided on the housing 121'' (multiple limiting grooves 125''' extend inward and The corresponding protrusions are formed in the outer shell) and a plurality of pins 123''' formed at the other end of the outer shell and extending to the outside of the outer shell; The step part 111''' and the locking groove 112''', the guide tapered surface 113''' is located at the end of the inner wall of the outer casing 11''', and the locking groove 112''' can be used as needed (that is, the Whether the socket needs to have circumferential movement) is set in a ring or multiple intervals. However, in this embodiment, the extension direction of each pin 123''' is perpendicular to the direction where the axis line of the housing 121''' is located, so that the pins 123''' become SMT surface mount pins ; The guide tapered surface 113''' is only a single-sided structure with an enlarged guide range. At this time, the locking connection between the stamping shell and the plug becomes a sliding contact connection.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present invention, and its purpose is to allow those familiar with this technology to understand the content of the present invention and implement it accordingly, and cannot limit the protection scope of the present invention with this. Equivalent changes or modifications made in the spirit shall fall within the protection scope of the present invention.

Claims (8)

1. A board-to-board radio-frequency coaxial connector socket, which includes an overcoat, an insulator fixed in the overcoat, and pins that are arranged in the overcoat and pass through the insulator, and the insulator includes an insulating body and an opening The socket for installing the pin on the insulating body is characterized in that: the insulator is fixed in the outer casing through a stamped shell sleeved on its outer periphery; the inner wall of the outer casing is sequentially formed with a guiding cone surface , a limiting step and a locking groove; the stamped shell includes a housing that is arranged in the outer sleeve and has one end against the limiting step, and is arranged on the housing and connected with the locking groove A plurality of snap-fit protrusions, a plurality of limiting grooves provided on the housing, and a plurality of pins formed on the other end of the casing and extending outside the casing; the insulator also includes A plurality of positioning grooves formed on the outer peripheral surface of the insulator and matched with the limiting grooves. 2. The board-to-board RF coaxial connector socket according to claim 1, wherein the insulator further includes a plurality of limiting protrusions arranged on the outer peripheral surface of the insulator and in contact with the inner wall of the housing. The engaging protrusion and the limiting protrusion are respectively located on both sides of the positioning groove or the limiting groove. 3. The board-to-board radio-frequency coaxial connector socket according to claim 1 or 2, characterized in that: the pins include a pin body, a first stop ring provided on the peripheral surface of the pin body, and a set The distance between the first limiting protruding ring and the second limiting protruding ring is equal to the thickness of the insulating body. 4. The board-to-board radio-frequency coaxial connector socket according to claim 1 or 2, characterized in that: the number of the locking protrusions and the limiting grooves are the same, and they correspond to each other and are arranged adjacent to each other. 5 . The board-to-board radio frequency coaxial connector socket according to claim 1 , wherein each of the pins extends toward the axis of the housing. 6 . The board-to-board RF coaxial connector socket according to claim 5 , wherein an extension groove is opened on the outer surface of each pin. 6 . 7 . The board-to-board RF coaxial connector socket according to claim 1 , wherein the extension direction of each pin is perpendicular to the direction where the axis of the housing is located. 8 . 8. The board-to-board RF coaxial connector socket according to claim 5 or 7, characterized in that: the guiding tapered surface is formed by sequentially connecting multiple tapered surfaces and at least one cylindrical surface.